Highly efficient organic light-emitting diodes with a quantum dot interfacial layer

作者：Ryu Seung Yoon; Hwang Byoung Har; Park Ki Wan; Hwang Hyeon Seok; Sung JinWoo; Baik Hong Koo^*; Lee Chang Ho; Song Seung Yong; Lee Jun Yeob

来源：Nanotechnology, 2009, 20(6): 065204.

DOI：10.1088/0957-4484/20/6/065204

Advanced organic light-emitting diodes (OLEDs), based on a multiple structure, were achieved in combination with a quantum dot (QD) interfacial layer. The authors used core/shell CdSe/ZnS QDs passivated with trioctylphosphine oxide (TOPO) and TOPO-free QDs as interlayers. Multiple-structure OLEDs (MOLEDs) with TOPO-free QDs showed higher device efficiency because of a well-defined interfacial monolayer formation. Additionally, the three-unit MOLED showed high performance for device efficiency with double-structured QD interfacial layers due to the enhanced charge balance and recombination probability.

• 出版日期2009-2-11